Steam or gas turbine plant



0; A. WIBERG. STEAM 0R GASJUR BI NE PLANT. APPLICATION F-ILEDSEPT. 8, 1919.

Patented 6, 1920.

l A a /n Fig 2 srns OSCAR ANTON WIBERG, 0F FINSPONG, SWEDEN, ASSIGNOB 'IO .SVENSKA TURBIN- FABRIKS AKTIEBOLAGET LJUNG'STRfiM, OF FINSPONG, SVV'EDEN.

STEAM OR TURBINE PLANT;

To all whom it may concern:

Be it known that 1, Oscar: Aaron Wnznno, a citizen of the Kingdom of Sweden, residing at Finspong, Sweden, have invented new and useful Improvements in Steam or Gas Turbine Plants, of which the following is a specification.

In my copending U. S. patent application Serial No. 322,599, filed June 10/19 a steam or gas turbine plant is described, comprising a high pressure member and a low pressure member, the high pressure member consisting of an impulse turbine of the axial type, while the low pressure member consists of a double rotating radial turbine which may or may not be provided with radially extending blades. According to the patent application above referred to the shaft ef the high pressure turbine may either be mechanically connected directly to one of the shafts of the low pressure member or it may be connected thereto through the inter-medium of a suitable gearing. From one of the shafts so connected the power is supplied by means of a toothed gearing to any S! c. ale inter eliate shaft or driven shaft, the other shaft of the low pressure turbine being connected through a separate toothed gearing to the said intermediate shaft or driven shaft. It is obvious that in such case the said first-mentioned gearing must be formed with a width considerably greater than that of the said last-mentioned gearing, as the pinion forming part of the said first-mentionedgearing has to transmit a much greater power than the pinion forming part of the said last-mentioned gearing.

In order to overcome said inconvenience and thus )ermit the use of toothed bearings having equal dimensions for the transmission of power to the intermediate or driven shaft the low pressure turbine according to this invention is connected by means f a separate pinion to the toothed gearing common to the whole turbine plant. 7

In the accompanying drawings, Figures 1 and 2 illustrate diagrammatically two embodiments of the invention.

In the embodiment shown in Fig. 1 the shaft of the high pressure turbine or im- Speoification of Letters Patent. Pafggnted A131, 6, 1920,

Application filed September 8, 1919. Serial No. 322,599." I I meshing with a toothed wheel 0 on the intermediate shaft h. The shaft of the double rotating turbine b forming the low pressure. member of the plant carries apinion cl like wise meshing with the toothed wheel 6. The other shaft of the turbine b is connected through the toothed gearing f, g to theshaft 72 which is connected to the driven shaft as in the patent application above referred The embodiment shown in Fig. 2 corresponds to the embodiment above described with the exception that for permitting a greater speed of the high pressure turbine at the pinion 79 is not mounted on the shaft of the turbine a but on an intermediate shaft r, connected by means of a gearing t, s to the shaft of the turbine a. 7

Having now particularly described and ascertamed the nature of my said invention and in what manner the same is to be per formed, I declare that what I claim is 1. A turbine plant for steamer gas, com

prising in combination a high pressure member eonsisting'of an impulse turbine of the axial type, a low pressure member, consist- I 2. A turbine plant for steam or gas, com

prising in combination a high pressure member consisting of an impulse turbine of t the axial type. a low pressure member consisting ofa radial turbine of the double ro-' rating type having two shafts rotating in opposite directions, toothed gearings con necting the said two shafts to a common driven shaf another toothed gearing connecting the high pressure member to an intermediate shaft, a pinion connecting said intermediate shaft with one of said firstmentioned toothed gearings'. 1

In testimony-whereof? I have signed my OSCAR PANTON winnno. 

